SONY CD Walkman D-E404. Color: Silver [Product Features] ・Built-in ESP, so there will be no skipping or playback interruption even if you tap the body during CD playback. ＊ESP Explanation: Audio data from the CD is stored in semiconductor memory for several tens of seconds in advance. This technology sequentially outputs the audio data stored in this memory to a D/A converter and outputs it via a HP amplifier. [Included Items] (All items are shown in the first photo) ① D-E404 Body ② Stereo earphones (made by another company/new) ➂ AA alkaline batteries (new) x 2 ④ Instruction manual [Operation Check] ＊Checked with 2 AA alkaline batteries installed ＊ESP = ON setting Played a music CD with few scratches on the signal surface (17 songs, approx. 72 minutes) and checked the following items. As a result, everything is working normally. ① Does it play without skipping during normal operation? ② Does skipping between Track 1 and the last track occur without delay? ➂ Do all the switches on the main unit function properly? ④ Does skipping occur when lightly tapped 5 times in a row during playback? [Continuous Playback Time Confirmation] Confirmed continuous playback time = 19 hours under the following conditions. ① Installed 2 new AA alkaline batteries ② Attached the included remote control and stereo earphones ➂ Played a commercially available CD with approximately 72 minutes of music in all-song repeat mode (volume set to 1/3 of the maximum value) [Appearance] Top of the main unit: There are no noticeable scratches or stains, but there is uneven paint that can be seen when held up to the light. (Cannot be expressed in the photos) Bottom of the main unit: No noticeable scratches or stains. Sides of the main unit: No noticeable scratches or stains. Accessories: No noticeable scratches or stains.